Lawmakers this week have pushed for a one-year waiver of the law, which mandates that American-owned and -operated vessels transport cargo between U.S. ports, so that Puerto Rico can receive much-needed aid after being battered by two major hurricanes in the last month.

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McCain this week re-upped his call to repeal the law, which he has called “archaic and burdensome.”

“It is unacceptable to force the people of Puerto Rico to pay at least twice as much for food, clean drinking water, supplies and infrastructure due to Jones Act requirements as they work to recover from this disaster,” the senator wrote in a letter to acting Homeland Security Secretary Elaine Duke.